Iraqi Prime Minister Nouri al-Maliki has urged rival factions of his government to unite to prevent more sectarian violence.
Mr. Maliki said Sunday that public disputes among Iraq's politicians are fueling the bloodshed. He made the plea on Iraqi television, surrounded by Sunni Arab, Shi'ite and Kurdish leaders.
Mr. Maliki also visited Baghdad's Shi'ite district of Sadr City, where bombings killed more than 200 people last week. Residents pelted his motorcade with stones as he left the area.
Iraqi officials say President Jalal Talabani is expected to go to Tehran Monday to meet with Iranian President Mahmoud Ahmadinejad. Iran has indicated it could help stem sectarian violence in neighboring Iraq.
Later in the week, the Iraqi prime minister is to meet with President Bush in Amman, Jordan.
Meanwhile, insurgents carried out more attacks across Iraq, including a car bomb that killed five in the mixed Sunni-Shi'ite village of Haswa. The US military said three more American troops have been killed in Iraq.
Two Marines died Saturday in Anbar province, west of Baghdad, and a US soldier was killed by a roadside bomb in Diyala province north of the capital.